Launched in 2011, Intercom bills itself as a "customer communication platform on a mission to make internet business personal." That translates into a number of products designed to help customer service providers work more efficiently and effectively.

Iconiq is like a venture capital firm like no other. A December 2014 Forbes article by Brian Solomon described it as "'Zuck & Friends' secret billionaire fund." As well as Zuckerberg and Sandberg, Facebook-affiliated clients include cofounder Dustin Moskovitz and early employee Sean Parker, along with Twitter's Jack Dorsey, LinkedIn's Reid Hoffman, and Dropbox's Drew Houston — plus a number of other non-tech billionaire investors.

The fund is headed by Divesh Makan, a former Goldman Sachs investor, and previous investments include SurveyMonkey, DocuSign, GoFundMe and Flipkart. Now Intercom is being added to that list.